I'm sure the testing industry would love this proposal, but I disagree. Let people know general dexterity scores needed, give them an option to test themselves,

I'm sure the testing industry would love this proposal, but I disagree. Let people know general dexterity scores needed, give them an option to test themselves, but don't require it until it is time for admission. You'd be way, way, way overtesting for a skill the majority won't need. Most med students are ultimately not at all interested in surgery due to how long the post-graduate residencies are (5 years, minimum), to say nothing of potential fellowships. And there's only about ~1,300 total residency spots per year anyway, so testing all med students would just be a unnecessary revenue stream.